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<body>
    <div name="ase" id="x"></div>
    <div id="yui" style="visibility: hidden;">剩余30秒</div>
    <div id="qwas" style="visibility: hidden;">游戏结束！
    </div>
    <input id="vbs" type="button" value="你能炸死我吗？" onclick="fv1()">
    <input id="vbs1" type="button" value="双人游戏" onclick="fv()">
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